Specification:Material: Metal
Dry polishing is preferred for onsite stone polishing when wet polishing is impractical
Has excellent resistance to solvents
Inner Diameter x Outer Diameter: 15
It is made of plastic material and it is very durable for your table and chair foot
Computer PC Case Round Head Knurled Thumb Screws Black 6#-32 10pcs Volume Control Specification:Material: MetalAvailable Optional Color: Royal Blue, Green, Gold Tone, Wine Red, Black, Silver Tone, Fushcia, Purple, Sky Blue, Orange Thumb screws that attach to panels with a retaining washer (not included), staying in place even when not tightened. They have an easy grip head that allows for simple by hand installation, just like conventional thumb screws. The large thumb screw has an extra large head with a straight knurled surface for additional grip for manual