$9.99and up
LEGO 71801 Ninjago Kai's Rising Dragon StrikeEntertainment Earth & 3 more$8.99and up
LEGO NINJAGO Kai Ninja Race Car EVO Toy Building Set 71780Target & 2 moreSAVE $2.69
$8.80$11.49
LEGO Ninjago: Kai and Rapton's Temple Battle Polybag with Additional Red Cape 30650Amazon$46.19
LEGO NINJAGO Kai's Mech Jet 71707 Ninja Car Building Kit (217 Pieces)Amazon$37.99and up
LEGO NINJAGO Kai's Source Dragon Battle 71815 Building Kit (120 Pieces), MulticolorKohl's & 3 more$15.91and up
LEGO NINJAGO Kai and Ras’ Car and Bike Battle 71789 Beginner Building Toy Set, Features a Ninja Car Toy and Bike Plus 2 Minifigures, Birthday Gift for Toddlers and Kids Who are Little Ninja FansAmazon & 3 more$72.75
LEGO NINJAGO Legacy Kai Fighter 71704 Building Set for Kids Featuring Ninja Action Figures (513 Pieces)Amazon$35.99and up
LEGO NINJAGO Kai Mech Rider EVO Action Figure Toy 71783Target & 2 more$29.99and up
LEGO NINJAGO Kai’s Elemental Fire Mech Action Figure, Mini Ninja Toy for Kids with Customizable Red Ninja Figure Plus Kai and Zane Minifigures, Adventure Set for Boys and Girls Ages 7 and Up, 71808Amazon & 3 more$59.99
Lego Ninjago Creative Ninja Brick Box 71787 Toy Building Set with Kai, Nya, Master Wu, Apprentices and Bone Hunter Minifigures - MulticolorMacy'sSAVE $4.00
$12.99$16.99
LEGO Ninjago Accessories: Ninja Set of 6 Hair Pieces (Loose) fits - Lloyd, Cole, Kai, Jay, NYA & ZaneAmazon$129.97
LEGO Ninjago 70721 Kai Fighter ToyAmazon$117.45
LEGO NINJAGO Kais Golden Dragon Raider MultiTerrain Car Toy With Kai And Zane Minifigures Building Set For Kids Ages PlusSHEIN$44.99
LEGO NINJAGO Kai's Mech Rider EVO 71783 Buildin g Set - 312 PcsQVC$37.65
Lego Ninjago Set: 71801 Kai's Dragon Glider, 71802 Nya's Dragon Glider, 71803 Arins Dragon Glider & 30650 Kais and Rapton's Duel in the TempleAmazon$17.94
LEGO NINJAGO Kai’s Spinjitzu Ninja Training 70688 Spinning Toy Building Kit with NINJAGO Kai; Gift for Kids Aged 6+ (32 Pieces)AmazonSAVE $1.12
$15.87$16.99
LEGO NINJAGO Legacy Kai’s Blade Cycle 71734 Ninja Motorcycle Playset Building Kit, Featuring NINJAGO Kai and a Snake; New 2021 (54 Pieces)Amazon$27.75
Lego Ninjago Kai (Tournament Robe) & Ghost Ninja Wooo Minifigure set 5003085 ExclusiveAmazon$113.99
LEGO NINJAGO Temple of The Endless Sea 71755 Building Kit; Underwater Playset Featuring NINJAGO Kai and Snake Toy; New 2021 (1,060 Pieces)Amazon$92.75
LEGO NINJAGO The Keepers' Village 71747 Building Kit; Ninja Playset Featuring NINJAGO Cole, Jay and Kai; Cool Toys for Kids Aged 8 and Up Who Love Ninjas and Creative Play, New 2021 (632 Pieces)AmazonSAVE $7.49
$87.50$94.99
LEGO NINJAGO Temple of The Dragon Energy Cores 71795, Building Toy with a NINJAGO Temple and 6 Minifigures Including Cole, Kai and NYA' Gift for Kids Ages 8+ Who Love Buildable Ninja PlaysetsAmazon$19.99
LEGO NINJAGO Epic Battle Set – Kai vs. Skulkin 71730 Building Kit; Ninja Playset Featuring a Spinning Battle Toy, New 2021 (61 Pieces)Amazon$10.99
LEGO(R) Ninjago Kai's Dragon Power Spinjitzu FlipBoscov's$219.95
LEGO NINJAGO Hydro Bounty Building Set, 71756 Submarine Toy with Kai and NYA Minifigures, Ninja Toys, Gifts, Presents for Kids, Boys, Girls Age 9 Plus Years OldAmazon$60.00
LEGO Ninjago Masters of Spinjitzu Combo Foil Pack - Set of 6 Minifigures (Lloyd, Jay, Cole, Zane, Kai, and Nya)Amazon$29.99
LEGO NINJAGO Kai's Elemental Fire Mech Toy 7180 8QVCSAVE $3.55
$26.44$29.99
LEGO Ninjago Boy's Kai The Red Hooded Unionsuit, Green, Size 6/7Amazon$119.99
LEGO NINJAGO Wolf Mask Shadow Dojo Building Toy with 8 Ninja Action Figures Including Kai, NYA, Lloyd and Zane, Kids’ Ninja Master Toy for Independent Play, Toys for 9 Year Old Boys and Girls, 71813Amazon$109.94
LEGO NINJAGO The Crystal King Temple Action Playset, 71771 Buildable Ninja Toy for Kids 8 Plus Years Old with Cole, Zane, Kai and Jay MinifiguresAmazon$15.89
LEGO Ninjago Movie Minifigures Series 71019: Kai MinifigureAmazon$43.96
LEGO NINJAGO Cole’s Dragon Cruiser Car Toy, 71769 Ninja Toys with Golden Kai, Cole and Snake Warrior Minifigures, Gifts for Kids, Boys & GirlsAmazonSAVE $4.00
$25.99$29.99
LEGO Ninjago Little/Big Boys Costume Plush Robe, Kai Red New, 4/5, 4-5AmazonSAVE $15.40
$28.60$44.00
Lego Ninjago Kids Kai Badge Graphic T-Shirt, Red, LargeBelk$31.63
LEGO NINJAGO Kais Elementary Fire Mecha Fun Ninja Toy For Kids With Customizable Red Action Figure And Kai And Zane Minifigures Gift For Boys And GirlSHEIN$25.99and up
Lego Ninjago Kai Ninja Warrior 13" Plush Character - MulticolorMacy's & 1 more$9.99
Lego Ninjago Silicone Luggage Tag for Travel, Suitcase, Backpack, Summer Beach Bag - Kai (53342) Non-Toxic & Odorless with writable Surface on Back for ID Identification. Measures Approx. 6.5"Amazon$37.16
BRICKCOMPLETE Lego Ninjago Set of 4: 71777 Kai's Dragon Power Spinjitzu Flip, 71778 Nya's Dragon Power Spinjitzu Drift, 71779 Lloyds Dragon Power Spinjitzu Spin & 30593 Lloyd Suit Mech PolybagAmazon$30.00
Juniors' Lego: Ninjago Kai Master Element Of Fire Graphic Tee, Girl's, Size: Medium, RedKohl's$49.99
Boy's Basic Lego Ninjago Kai Legacy CostumeOriental Trading Company$67.98
Disguise Kai Costume for Kids, Deluxe Lego Ninjago Legacy Themed Children's Character Outfit, Child Size Large (10-12) Red (100409G)Amazon