This Gomexus power knob is made of aluminum, which is environmental. The slim shape fits in the palm of your hand, more comfortable grip with round knobs can be held very tightly by just touching it lightly.

• [Grip issues] Conventional knob is small and there is little room to change the grip, so long-term use puts strain on the wrist.
• [Innovative 50/55mm] Designed like an “office chair”, the contact area of ​​the hand is expanded, allowing for more gripping options and effectively reducing wrist fatigue. The L-shaped long knob effectively reduces finger fatigue.