Cat1st Kitty Play Cube (baby blue)#The best cat toy High quality sturdy nylon material(WARNING Be sure to purchase from CAT1st, other seller might be selling flimsy paper fabric product) Keeps cats entertained for hours Easy to keep clean and folds up for easy storage Built-in flexi-frame: Pops open in seconds 15.8 x 15.8 x 15.8 inches Connect to additional cubes and tunnels with velcro