Avery 12445 Tyvek Shipping Tags, 4 3/4 x 2 3/8, White (Box of 1000) General purpose shipping tags. Good strength with a smooth writing surface. The barrel shaped patch is welded onto each tag to give extra strength where it is needed. Strung tags feature 12-inches of looped, #9 twine; double-wired tags feature 12-inches of 26-gauge wire (available unstrung, strung or wired).