GLOW IN THE DARK FORT BUILDING KIT - Build endless play tent structures, forts, play tunnels and more with this construction fort set that includes 64 glow in the dark connecting rods, 36 multilink spheresBUILD YOUR OWN FORT - Create giant kids forts by inserting and twisting the rods into the spheres (adult supervision is advised); Children can play indoor and outdoor. Glow in the dark feature needs to be exposed to light prior to activating in the dark.LEARNING TOYS FOR KIDS - Build and imagine while mastering basic engineering skills; this construction fort building kit designed to ignite creativity; make a kids play tent by adding a light sheet for the roof.INSPIRE KIDS ABILITY - Great for cultivating children's imagination, developing eye-hand coordination, training fine motor skills as well as improving color and shape recognition.KIDS TENT CONSTRUCTION TOYS SPECS - This kids play fort kit is made with kid-safe, BPA-free plastic; includes 12.2 inches rods and 1.38 inches balls; these construction fort building toys are perfect for curious-minded kids ages 4 and up.Type : CMaterial:plasticcolour:ColorPackage Contents:36 x Ball64 x tube1 x Tent clothOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.