The plastic threads for easy installation and secure attachment. Perfect and professional for a hose end of trailers, shelves, shop fittings etc. It can also be used as furniture feet to protect floor surfaces. Product name: Rectangular pipe insert Rubber feet Size above: 30 x 20mm / 1.2 inch x 0.8inch (L x B) Thread size: 30 x 20mm / 1.2 inch x 0.8inch (L x B) Total height: 16 mm / 0.6 inch Material: plastic Color: Black Net weight: 308g Package Included: 80 x rectangular tube insert Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.