What is the difference between Angooni clips and others'? 1. Made with POM, instead of ordinary Nylon, PP, ABS, very strong; corrosio, heat and abration resistance,easily live with bad weather 2. Environmental Protection: ROHS certification, no pollution, smell it, you will not found odor like others' clips How to distinguish high quality clips from cheap clips? 1. Gloss: There is rich gloss on the surface of high quality clips, while the cheap clips is dim, of course, we can't see the difference between them from picture 2. Accuracy&texture: High quality clips are clean&stronger,but the cheap clips always has burr&ugly, make it can¡t hold tightly 3. Odor: Smell them, high quality clips no smell, while cheap clips has unusual smell, polluted&harmful 4. Lifetime: the cheap clips always made of ordinary Nylon, lower hardness&Accuracy make it easily to loose&break within 12 month, especially in hot summer&winter, with our high quality clips, you almost no need to replace them again