General description These 140Pcs Canning Lids are designed for regular mouth Ball and Kerr jars. Made from high-quality composite material, these split-type metal jar lids feature silicone seals to ensure a tight fit and preserve your canned goods effectively. Technical specifications Type: Flat Color: Silver Material: Composite material Size: 70mm Package Contents: 140 x Can Lids Measurement allowed error: +/- 1-3 cm