VEVOR Sliding Tub Transfer Bench with 360 Degree Swivel Seat, Sliding Shower Chair with Pivoting Armrest & Padded Seat and Safety Belt, Height Adjustable Bath Chair for Elderly Disabled 330LBS

Concerning your bath transfer chair. Because I do have severe nerve damage in my back where I cannot put much force with my fingers . May I ask is the knob that you have to pull to make it turn very HARD considering I can't pull very hard at all and I mean hardly anything at all. And 2 how do you make it slide do you have to pull another knob or do you just turn and loosen to where you can tighten in any position? And does it slide easi thank you for your time much appreciated, Les.