Dear Sir Madam, Type:Kids' Bike Wheel Size:12" Frame Material:Steel Fork Material:Steel Rim Material:RUBBER Product name:AO-WK1211 STYLE:WALKING BIKE FOR KIDS COLOR:AS TO ORDER STICKER:AS TO ORDER H STEM:4POINTS-TYPE HUB:14G*16H RIM:1.75"*14G*16H TIRE&TUE:12"*2.125",W BUTYLE TUBE,A V SEAT:FOAM,OPC,W SEAT TUBE REMARK:COLOR&STICKER AS CUSTOMERS TO DISCUSS