【PRODUCT DETAILS】- Material: Aluminum Foil PVC Plastic; Type: Inflation Balloon; Pattern Style: Radio; Style: Retro Speaker; Inflated Size: 16 x 11 x 5 Inch / 40 x 28 x 12 cm; Weight: about 1.76oz / 50 g.
【HOW TO RELEASE THE AIR】- There are two methods: 1. Use Ball pump needle insert into the valve slit, the air will come out soon; 2. Press the pump valve hard by hand till the valve slit become wide, then the air will coming out soon.