Fun for your little kids,Website:://.jstrampoline.com, the little kids will be on and off it all day today!! Just jump, fold up, and jump again!Some assembly required for the legs and bar. The bar comes with a foam coated on the top so the kids have a firm grip. the protective cover is a nice touch, Springs are tight and lets the kids jump higher when they apply more force, It came with all the pieces, screws, and tools you need to assembleOptional Size: 36 inch, 38 inch, 40 inch, 48 inchSize: 38 InchFrame Height: 21 cm6 legs32 pcs  88 mm Springs25×25×1.0 mm steel tube, galvanized inside and outsidePVC pad with foamPacking Szie: 97 × 5.5 × 97 cm (7.5/8.5KG)Trampoline:1) Steel Tubes: Q195, hot dip galvanized inside