Aluminum alloy: High-strength aluminum alloy, wear-resistant, providing stable . Adjustable design: With a unique adjustable structure, the height can easily adjusted according to needs, enhancing the flexibility of use. Excellent shock absorption effect: Build in steel ball suspension devices effectively reduces vibrate transmission and minimizes equipment noise interferences. Anti slip base: The bottom is designing with nonslip to enhances frictions with the ground, making it difficult to slide and maintain stability. Package includes: 1Pc or 2Pcs or 4Pcs Shock-Absorbing Foot Pad(optional)