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Amazon.com : LIUGX 2 Pack Retractable Keychain, Heavy Duty Carabiner Key Chains, 10,000+ Rebound, Impact Resistance ID Badge Reels with 31.5” Wire Rope and Key Ring, Up to 8oz, Aluminum Ring, Carbon
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Carabiner development blog - tracking developments in rock climbing technology: Carbon fibre carabiner (key chain)
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