Material: This universal jar sealers made of PP which is wear resistant, durable and not easy to break. Multi-purpose: This vacuum sealer has wide usage which is suitable for sauce, nuts, grains and other snacks storage bottles. Application: The sealing machine lid is suitable for wide mouth jars and regular mouth jars respectively.. Sealing: By using the storage lid can keep sauce or other snack from being moisture and can keep for long time. Fit occasions: This canning seal accessory can be used in many occasions such as household kitchen and restaurant. Material: Silicone. Size: Approx. 8.5x8.5x5.5cm/3.34x3.34x2.16inch; Approx. 10.5x10.5x5.8cm/4.13x4.13x2.28inch. Color: Black, Light Grey 4 Pieces Jar Sealers. Material: This universal jar sealers made of PP which is wear resistant, durable and not easy to break. Multi-purpose: This vacuum sealer has wide usage which is suitable for sauce, nuts, grains and other snacks storage bottles. Application: The sealing machine lid is suitable for wide mouth jars and regular mouth jars respectively.. Sealing: By using the storage lid can keep sauce or other snack from being moisture and can keep for long time. Fit occasions: This canning seal accessory can be used in many occasions such as household kitchen and restaurant.