. * Made of high quality material for durable use. * Operation is fast and simple. * 360 degree swivel support handle. * Holds mugs, beer glasses, cans or small bottles of drinks. * Handy drink pads for any musician or performer and easily mounts to microphone, instrument, music, speaker, cymbal stand. * It is good to mount it on your bicycle motorcycle. Specifications: Material: Plastic Color: Black (As shown) Weight: 100g Screws Per Tube: Tube Diameter 23mm to 28mm / 0.9inch to 1.1inch. Fit for: 7cm/2.75 inch diameter after a cup of water. Package List: 1 x Beverage Coasters Note: It is recommended that the height of the water cup should not exceed 180mm and the maximum weight should not exceed 450g. Please refer to the measurement. A small measurement error is acceptable within the normal range.