These are some adapters for the old SnipIt vacuum haircutter which seems to be competition of the Flowbee but with shears operated by a handle. I think these were sold in germany via TV Shopping in the 90s. They work well but the old plastic breaks easily. If you have one yourself or want the original file for modification, please contact me. I try to find more Info on these Devices and i would like to buy one myself. The adjustable one can be printed in place and with support. Just put a screw in the Hole on the side and its pretty stable. I printed the others with supports too. If you have trouble putting them on the Rail on the SnipIt. cut some Material away, i made the fit tight.