K'Nex Classic- 300pc Building Fun Tub Boxers shop the "Cove" in all

shop the "Cove" in all swim styles and pair with any of our matte tone accessories

They’re lightweight

They are not a life jacket

Sleeves: Sleeveless

K'Nex Classic- 300pc Building Fun Tub Boxers shop the "Cove" in allBUILDING FUN TUB 300 PC 20 MODEL TUB SET Introduce your children to endless building possibilities with the K'NEX Building Fun Tub! This building set from K'NEX comes with 300 different rod and connector pieces, which can be assembled into 3D configurations. Kids can follow instructions to create 20 different model ideas including: a Scooter, a Chopper, a Robot, an Excavator, and much more! Help your kids develop a better understanding of STEAM