1pc Surgical Steel Straight Barbell - select desired length, gauge and ball size from the drop down menus Millimeter to inches conversion: 6mm = 1/4" 8mm = 5/16" 10mm = 3/8" 11mm = 7/16" 12mm = 1/2" 14mm = 9/16"16mm = 5/8"18mm = 11/16"19mm = 3/4"20mm = 13/16"22mm = 7/8"24mm = 15/16"25mm = 1"26mm = 1&1/32"28mm = 1&1/8"30mm = 1&3/16"32mm = 1&1/4"35mm = 1&3/8"36mm = 1&7/16"38mm = 1&1/2"40mm = 1&9/16"50mm = 1&15/16"51mm = 2" Materials: 316L Surgical Steel EVERYTHING we sell is brand new, never worn. Shipping: We offer free shipping on additional items that are paid on the same invoice. You pay the single highest shipping price, and all others are charged at a rate of $0.00. Feedback: Your satisfaction is important to us. If for any reason you feel like we don't deserve a 5-star rating in every category please allow us the opportunity to rectify the situation. While many situations such as postal delays are out of our hands, we will do whatever we can to alleviate any problems that may arise.