1-3/8" INNER DIAMETER: Designed to fit most standard speaker poles and mounts, the 1-3/8" inner diameter provides a secure connection that reduces wobble and improves stability. Ideal for permanent installations in clubs, venues, studios, or home audio setups. COMPACT YET STURDY DIMENSIONS: Measuring 7" x 4.5", this exterior speaker mounting bracket offers a compact footprint while maintaining strong support for your speakers. The size is optimized to save wall space without compromising durability or load-bearing performance. 3" SHAFT INSERT DEPTH: The 3" shaft insert depth allows your speaker pole to sit deep inside the bracket for enhanced security. This added depth helps prevent accidental slips or vibrations, making it suitable for heavier speakers and long-term installations. Color: Black Material: Metal Package Contents: 1*Speaker Mounting Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.