SET OF 4 PCS. ALUMINUM SPIKES FOR SPEAKERS / COLOMES IMPROVE THE ACOUSTICS OF YOUR COLUMNS The main purpose of using this type of accessories is isolation of feedback and surface vibrations. This will result in stronger concentration of sounds and better reception. This will also affect the removal of distortion. STABILIZE YOUR SPEAKERS Do not forget that your columns should stand equally. Only then will one play correctly. By using our spikes under the columns, you provide im appropriate working conditions. UNIVERSAL USE: The products presented here can be used with: Speakers. CD players. Amplifiers. Other audio equipment. Adhesive spikes are za using ttwo-sided M3. You do not need to drill any mounting holes. SET CONTENTS: 8 pcs. double-sided tapes 4 pcs. basics 4 pcs. washers TECHNICAL PARAMETERS: Base diameter: 23 mm Washer height: 4 mm Spike length: 20 mm Overall height: 24 mm Material: Aluminum