There are 4 protective caps on the bottom of legs to ensure protecting your floor from scratches. Assembly elements and guide are included in the box. It has an uncomplicated assembly structure for your convenience. Additional tools may be needed. This sturdy desk has beautifully designed metal legs by our expert craftsmen that are 30 mm in diameter and electrostatic black paint on them. Manufactured woods we use in our products are top quality and finished in walnut wood-look. Cleaning with a slightly wet cloth would be enough. We recommend not to leave your furniture wet for too long. Loft Home Computer Desk | Black | Living Social