Comfortable Button: The round and smooth button is both aesthetic and enhances use safety. Solid Base: The large base of 3.35" in diameter makes this product be placed on the table without slipping off. Application It is suitable for use in restaurants, hotels, meeting rooms, bars, schools, offices, reception areas, hospitals, warehouses, and homes to provide service, ask for help, or train pets. Specification Material: Iron Color: Silver Style: Modern Shape: Round Process: Electroplated, Spray Plastic Assembly Required: No Number of Items: 24 pcs Gross Weight: 3kg/ 6.61 lbs Net Weight: 2.5kg/ 5.51 lbs Each Net Weight: 101g/ 0.22 lbs Package Size: 36*27*13.5 cm/ 14.17*10.63*5.31in Each Product Size(D*H): 8.5*6 cm/ 3.35*2.36 in Package Included 24Pcs* Service Call Bells Notes Please allow the slight color difference caused by the shooting light and the 1-3 cm error due to manual measurement, and make sure you do not mind before ordering.