A tough set of fixed handcuffs to detain.

Built with minimal hardware, easily available at any hardware store.Although not intended to replace metal cuffs, these are a tough cheap alternative that can be produced at home.

If you're a frequent user of cuffs, with these file, the parts can be reprinted and multiple cuffs made.

The cuffs ratchet closed and are released by a standard handcuff key and no other way and can be double locked.

The cuffs can be tethered by a padlock hole in the centre.

Required materials:6x M4x16mm socket screws (e.g. https://amzn.to/3esOCdT)6x M4 nuts2x handcuff keys (e.g. https://amzn.to/3cpjc5B)1x 15x2.25mm spring

These cuffs can be used for training, a light weight backup and adult purposes.