رنج زنبرك Basketball Rim

Suggested Specifications & Sizing
To appeal to both retail buyers and professional institutions, here are the standard professional dimensions for this heavy-duty double-spring breakaway rim:
Inner Diameter: $45\text{ cm}$ (Official Standard $18\text{ inches}$)
Rim Thickness: $18\text{ mm}$ heavy-duty solid steel
Bracket Size (Mounting Pattern): $12.5\text{ cm} \times 10\text{ cm}$ ($5\text{ in} \times 4\text{ in}$) standard multi-bolt pattern, compatible with most indoor/outdoor backboards.
Net Connection: 12 welded high-strength steel hooks.
Weight: Approximately $9.5\text{ kg}$ ($21\text{ lbs}$) including mounting hardware.
Product Description
Professional Double-Spring Breakaway Basketball Rim (AR7)
Take your game to the next level with the ANBOO AR7 Professional Breakaway Basketball Rim. Engineered specifically to handle high-impact play, this rim is the perfect upgrade for competitive school gyms, municipal courts, and demanding home setups.
Heavy-Duty Double-Spring Mechanism: Equipped with two high-tension steel springs designed to absorb violent impact forces. The breakaway system flexes under pressure to protect your backboard from shattering and safeguards players' wrists during dunks, instantly snapping back into a perfectly level position.
Solid Steel Construction: Crafted from $18\text{ mm}$ high-tensile solid steel and finished with an ultra-durable, weather-resistant powder coating to prevent rust, chipping, and fading under intense outdoor sun or indoor humidity.
High-Strength Net Hooks: Features 12 securely welded steel loops designed to keep your net firmly locked in place, preventing hand injuries and eliminating net fly-up during fast-paced play.
Universal Fit: Built with a standardized $12.5\text{ cm} \times 10\text{ cm}$ mounting plate to easily install on almost any standard backboard.
Ideal For: Dunk training, school athletic programs, outdoor park courts, and premium home driveways.