Funny inflatable pumpkin costume for unisex adults to wear on Halloween cosplay parties Product Features: Made from 100% polyester material, strong, waterproof, lightweight. Fit for most unisex adult for 63-74inch/150-190cm. Freely turn and walk around, without any hinder. 4 AA batteries required(not included). It must be 4 AA batteries or it will not be powerful enough to fully inflate the costume. The costume has a premium quality battery operated fan that will blow it up within seconds and keep it full all the time. But please do not put it in your pocket for a long time to prevent the equipment from overheating. Please tighten the outer ring to hold the fan in place before putting on the costume, in case the ring becomes loose during shipment then the fan would fall out. If the costume can't be fully inflated, please loosen the ring and turn the fan towards the front to better inflate the head, also, tighten the drawstrings as tight as possibl