Product Included : 10 Pack BabyBlue Plastic Bungee Cord Locks (the cord excluding) ,Outter Size : 22.5 x 21.5mm ,Hole Dia. Just can Pass through Max up to 4.5~4.8mm Drawstring Ropes Detail Using:Cord Lock Stopper consist generally of three parts: a barrel, a toggle, and a spring. Firm Grip ,With spring loaded design,can keep a firm grip on whatever the use is for, easy to install and use.Squeezed together, tension is released and the cord lock can move freely up and down the cords. Released, the spring tension is engaged and the cord lock stays in place. Flexible and convenient: Plastic Cord Lock attaches to drawstrings and tightens without the use of knots, making it ideal for outdoor activities. Cord locks allow mountaineers to fasten clothing and camping equipment quickly in cold conditions when the fingers are encased in heavy gloves. Wide application: Our cord locks are fit a variety of different drawstrings and types of cords, so that your ropes are no longer loose and knotted, keeping them neat and tidy. Suitable for No Tie Shoelaces, BackPack Drawstrings, Pet Backpack, Pants closures, Lanyard, Luggage, Clothing,Glove,Flashlight Sportwear, Tent,Paracord products and a variety of outdoor and gym products and more. Perfect DIY: Cord Rope Lock Stopper Used for DIY Paracord Shock Drawstring, Ideal for handicrafts and handmade.The best DIY gift is for your family.