Davidsource,known as North America ,Europe and Asia registered brand ,is one of the most desired brand in North America ,Europe and Asia. Neck collar with O ring stainless magnetic pin restraint gear BDSM sex toy is one of the most popular sex toy ,use for couple or lover to make them feel happy and get stimulate. Material:chrome plated zinc alloy . Size(approx):height:0.8 ''(2cm),diameter:4.7 ''(12cm),collar thickness:0.19 ''(0.5cm) . Net weight:9.17 oz(260 g) . This shine metal collar is made of chromed zinc zolly,It 's stainless ( please do not scratch with rough surface) . Locking by magnetic pin,an extra pin presented for unlock the collar, easy to lock and unlock . There is one O-rings for attachment to chains,ties or other bondage gear. Means you can securely lock your submissive slave to the toys of your choice . You can even attach a leash to the collar and lead your sub around and make them follow all of your commands . 100% shopping guarantee,money-back satisfaction guarantee,we strive to ensure that all customers are completely satisfied with their purchases, and have full confidence that this product will go beyond expectations . If you have any questions, please feel free to contact us.