SUPANT Collapsible Emergency Water Jug Container Bag, Freezable, BPA Free Plastic Water Carrier Tank, Outdoor Folding Water Bag for Sport Camping Riding Mountaineer Backoacking, Food Grade 1.3Gallon/5L--1 pack bee04 The size of the blade

The size of the blade is 7FC

Swimming smart allows the athlete to adjust his or her stroke to the maximum efficiency

Easy to clean

silicone anti-slip buckle is not easy to fall off

SUPANT Collapsible Emergency Water Jug Container Bag, Freezable, BPA Free Plastic Water Carrier Tank, Outdoor Folding Water Bag for Sport Camping Riding Mountaineer Backoacking, Food Grade 1.3Gallon/5L--1 pack bee04 The size of the bladeSUPANT Collapsible Emergency Water Jug Container Bag, Freezable, BPA Free Plastic Water Carrier Tank, Outdoor Folding Water Bag for Sport Camping Riding Mountaineer Backoacking, Food Grade Product Features SET INCLUDES: 1*5 Liter Collapsible Water Tank Carriers. Constructed to hold saltwater or fresh water or some other drinkings. FREEZABLE It can be freezed with liquid. Besides, it can weaken sunlight burn inner liquid directly. FOOD GRADE MATERIALS: