High quality environmentally friendly plastic materials. sturdy and has a long life. safe and durable. good resistance. can be used for a long time. Unique design. We have two types of stroller hooks. One is an unenclosed stroller hook. the other is a closed carabiner. The stroller hook has a double hook design which can hang more things. The stroller hook makes it easy to pick up and take down and the carabiner keeps our things from falling out. They are all equipped with a strong velcro which makes it possible to attach stroller and pram accessories. Easy to install. just slip the velcro around your stroller handle and pull the stroller hook into a secure position. Open the velcro and wrap the velcro strip around the fixed part. Wrap it in the original belt and make sure it is tight. These hooks are light enough to put in your purse and strong enough to hold your large diaper bag. Easy to use: The stroller hooks have 360 degree rotation for optimal comfort. You can quickly and easily hang or remove the shopping bag. the food. the clothes on the stroller. It is a very practical bag hook. They are the best support for diaper bags. food. clothes. wallets. Multifunctional: whether for a walk in nature or for shopping. you can use a stroller hook that fits any type of stroller. Our stroller accessories adapt easily to all types of strollers. wheel chairs. shopping carts and anything with a handle.