Rings use a high grade Birch wood.. In original packaging. Ring Tube Diameter: 32 mm. Outside Diameter: 23.5 cm Inside Diameter: 18.0 cm Maximum Loading: 500 kg Webbing width : 4 cm Webbing length: 5 meters Non-slip surface quick adjustment with zinc alloy attachments. High strength nylon with quick release buckles. Also comes with grey rubber tape for better grip..
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