Valve must be able to seal close. Valve must be able to be blown into (to add air via mouth) AND to be filled with water. Valve must have double opening. PLS SEE ATTACHED. 联系方式Co:Aqua Aire Cushion, LLC Add:15625 W. Desert Vista Trail, Surprise, Az, United States Tel:1-602-320-5780 Fax:1-623-214-3928 Email:aquaairellc@msn.com Website:http://www.aquaaireseatcushion.com 联系人：Ms. Sherry Smith国家：United States产品类别机械五金aquaairellc@msn.com
