grippers
nounUK /ˈɡrɪpəz/
US /ˈɡrɪpərz/
Grippers are things that hold on tight and do not let go.
The little robot's grippers picked up the toy block.
OTHER MEANINGS
2. Small spikes or rough patches on the bottom of shoes that help you not slip.
His soccer shoes have grippers on the bottom.
3. People or things that grip something firmly.
The climbers were strong grippers on the rocky wall.
4. Devices on bicycles or tools that help you hold on tightly.
The bike's handlebar grippers felt soft in her hands.