5 Metal Silver Pirate Skull Beads For 550 Paracord Bracelets, Lanyards, & Other Projects 5 Brand New Silver Alloy Skull For Paracord Projects Measurements: 11mm x 13mm x 20mm with an approximate hole size of 7mm. You can fit two strands of paracord through the 7mm hole. Have any questions, please send me a message. Your order will almost always be shipped the following day, with the exception of Sundays.