4 Play Furniture has standard universal fittings that allows you to mix and match our parts to make your own custom unique creations. We call our parts "Kinkertoys". We have a continually growing selection of standard parts, and make custom parts, to allow you the greatest flexibility in how you want to set up your 4 Play Furniture. Have a completely unique play room, dungeon, or singer parties, where you can use the same furniture but change the configuration so the play space is different every time with just a few kinkertoy parts. Be creative in your kink play with just a few additional parts. Be wierd, be wild, and customize every piece of 4 Play Furniture with a few Kinkertoys.