Net weight: 40g. 12pcs Net weight: 40g. Size: 70x40x15mm/2.75 1.57 0.6in. 12pcs Size: 70x40x15mm/2.75 1.57 0.6in. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.