WEIGHT:850g SIZE:55CM COLOR:yellow ADVANTAGES:reasonable price, good quality, fast delivery, excellent after-sales service NAUGHTY KITTY JUMPING BALL, non-phthalateItem Promotional gift Material PVC (regular or phthalate free)StyleInflatableSize 55cmPackaging1pcs/opp bag, 150pcs/ctn, 0.039m³/ctnWeight 850gTestTUV, PTS, etc. Your questions:1. What is the conversion for inch and centimeter?1 inch = ...