This item is sports water bottle lid, made of premium PE material. The workmanship is exquisite and meticulous, bringing you good using experience. Safe, durable, practical, no easy to break and deform, excellent and good sealing effect.Features- Color: Transparent - Material: PE - Size: 3.50X2.90X2.90cm/1.38X1.14X1.14in - Made of premium PE material, which can be durable, wear-resistant and sturdy, useful and excellent.- With the creative design, it can seal the water bottle well, simple and convenient to use.- It provides completely sealed environment for your bottle, safe and secure screw lids.- The exquisite and meticulous workmanship, useful and safe, leak-proof and practical for different water bottles.- Safe and healthy, durable and practical, no easy to deform or break, excellent sealing effect for sports bottle, plastic water bottle.Packing list: 40 x Push Pull Replacement Caps