Harbinger Ankle Cuff is just okay since the are made cheaply and do not feel great. There are better options.

Harbinger ankle cuff are just okay and they seemed to be cheaply made and didn't feel great.

Tuff Stuff Functional Trainer as I remember this was a high quality piece of equipment. I used this in a hotel gym many years ago and it had a smooth operation.

Precor Leg Extension Selectorized is a good option that is normally found in a commercial space. I have used these and it seemed to be smooth.

Matrix Aura Leg Extension is a great high quality machine that has a smooth operation and I have used in a commercial gym.

XMark Tri-Grip Olympic Weight Plates is a really nice plate that is great to handle with cut out handle holds.

York Barbell Rubber Fixed Pro Curl Barbell Set are a real built and high quality set that I have used in commercial gyms.

Cybex VR2 Bicep Curl w/Swivel Handles is a great old school machine that was well built machine.