Milkfed strap. It came with a backpack I purchased, but I'm selling it because I don't use it. ★ Purchases by businesses, buyers, proxies, or for resale, including those from overseas, are not accepted due to the high number of unreasonable requests and troubles. I will not respond to requests for product ID information. I do NOT deal with any bidder's or buyer's representatives. ★ •*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪ Please check my profile before purchasing to avoid any trouble. Thank you for your cooperation. •*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪•*¨*•.¸¸♪ I will package it to protect it from water. I offer a discount for combined purchases with other items I have for sale (5% OFF the total amount). ♥ I'm sorry, but I do not accept any other price negotiations. ♥ Please check my profile for the number of days until shipping. ‎ᐢᴗ͈ ᴗ͈ᐢ It has been stored in a dark place, but please understand that it has been handled by a person once. Strap, Keyholder