✔【FOOD-GRADE MATERIAL】- The cup sealer film is made of food-grade material: CPP + PET. Safe, non-toxic and tasteless. It can bear low and high temperatures. 

 ✔【HIGH QUALITY & FOR 3000 CUPS】- Thickness: 0.04mm/0.0015in. The cup sealing film features high quality and strong tensile performance. 3000 cups can be sealed, economical and applicable, cost saving when using Wantjoin cup sealer film. 

 ✔【TRANSPARENCY FILM】- Fits cups with diameter from 3.5 to 4.1 inches. Suitable for manual, semi-auto, and automatic film sealer for boba cups. The sealing effect is perfect and will not leak. 

 ✔【LIGHT STRIP FOR SENSOR】- There are two light strips on two sides of the cup sealing film to help the electric light sensor locate the position accurately for excellent sealing. 

 ✔【WIDE APPLICATION】The cup sealer film is usually used in fast food restaurants, milk tea shops, dessert shops, canteens, and schools to seal various beverage cups and make the cups portable.