Check the listing for details. Vest Extender 1 Row Black Chain Biker MC Jacket Motorcycle Snap-4pc. Color: Black, Condition: New with tags. Listed at 17.99 USD. *******PLEASE CHECK YOU JACKETS SNAP SIZE BEFORE PURCHASE. THIS IS VERY IMPORTANT TO AVOID RETURN.********* Ok, This Chain Made With Aluminum. Not Plastic. This Will Do The Job Perfectly and This Is One Of Our Best Seller Set Of Vest Extensions. Worn By Bikers To Expand Their Vests As They Ride. You Can Choose From A 4" Or 6" Or 8" Extender. These Are Brand New And Hand Made In The U.S.A. Snap To Snap Length: 4", 6" Or 8". Choose From Option Material: 2.5mm Black Aluminum Chain & Genuine Leather Snap: Regular 10mm Or 3/8" or 7mm 1/4" Qty: 4 Guaranteed Satisfaction or Money Back How To Check The Snap: 1. Measure The Male Part Of Your Snap As We Pictured It 2. Check The Style Of Snap. We Have Crossed Out The Snap Will Not Fin Inta Image. 3. Please Check Carefully, That Way We Can Save Time And Avoid Returns.