金屬方形平項圈附內六角鎖

The Allen key lock is a nice touch—no fiddly jewelry clasp to worry about mid-scene, and it stays put once tightened. Metal feels solid and weighty without being uncomfortable against the throat. Exactly what I wanted for a first collar.

The squared edges sit flush against your neck without digging in, which I wasn't expecting from something this sturdy. The Allen key lock feels genuinely solid once it clicks shut, and I love that it doesn't look like a toy until you notice the tiny hex slot. Perfect balance of serious restraint and