Qualatex Gridz Kit (TDB) w/ 15 Panels and 10 Clips is handy in creating mural designs, sculptures, logos and backdrops. Possibilities are endless with these plastic panels that can be snapped together easily. Comes with 15 panels and 10 clips. Suggested inflation sizes: Square Modules: Inflate 11: latex to 7.5"; Triangle Modules (both triangle spaces) Inflate 11" latex to 6"; Cross Insert: Inflate 5: latex to 4"; Accent Pairs: Inflate 5" latex to 2.5".