Weight: 280g/bag; Size: 12"-Inflated; 4.7"-UninflatedPackage :The 12 inches matte blue balloons100 Pack thicken latex balloons; Color: Navy Blue Balloons PREMIUM QUALITY PARTY SUPPLIES: The 12 inches pearlized navy blue balloons are made from natural helium-quality latex that is durable and elastic, Eco-friendly and biodegradable. We at party supplies balloons have increased its thickness to decrease the rate of spoiled products. Thicker and stronger than general balloons. Each rubber balloon weights 2.8 g. Don't worry about blowing or exploding when inflated within 10 to 12 inches gas Applications: suitable for baby shower, graduation, Hawaii, wedding, birthday, bridal shower, tropical party, holiday, anniversary engagement ATTENTION & WARNING: Certain color difference occurs after Oxidation. Please DO NOT overfill the balloons and also avoid sunburn, overheat, pointed object and excessive friction. Due to automatic packing system, please understand that any holes or popped balloons within 1 or 2 pcs for one pack Balloons is a normal phenomenon.