✔️ Packet : 12 wheels + 24 short screws + 24 long screws; ✔️ These replacement casters fit perfectly, are more sturdy and also with rubberised wheels run smoothly on laminate flooring as well as carpet. They have significantly reduced the noise; ✔️ Wheel diameter: 30 mm . Swivel Soft Movement wheel. Metal plate. Plastic and rubber on top wheels. MAX 30 kg per 1 wheel; ✔️ Two types of fastening screws included : 3.5 x 16 mm ( 24 pcs ) and 3.5 x 30 mm ( 24 pcs ), Materials: stem – metal, black part – plastic, grey part – rubber polyurethane; ✔️ I provide invoices with VAT separately displayed., Manufacturer: Made in China