Product usage and description: Round covers and unusual-shape covers, which are high and low temperature resistant and bumping resistant with nice sealing performance. The materials are in conformity with the food hygienic standard. Both the customized ones and universal specifications are available.Material: PET PP PS PLA PVC KPSMaterial thickness: 0.2mm—0.5mmSpecification: 50mm—120mmColor: various colorsPackage: carton + film bag