This Product
Mad Rock Gemini
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Petzl Attache
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Awards  Editors' Choice Award Best Buy Award  Top Pick Award 
Price $20.95 at Backcountry
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$15.95 at Backcountry
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$11.95 at REI
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$16.11 at Backcountry
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$14.95 at REI
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Overall Score Sort Icon
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70
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Pros Effectively prevents cross-loading, reasonably affordable, relatively lightVersatile, lightweight, relatively affordable, lots of gate clearance, gate security stripeVery light, affordable, visual indicator on screw gate, full-sized offset-DVersatile, great for use with double ropes and belaying, auto-locking gate mechanism, wide gate openingLight, small, least amount of revolutions needed for screwgate to lock or unlock
Cons Very small gate openings, opening top gate causes other to automatically open, not super versatileScrewgate can get stuck closed, aluminum I-beam construction wears out quicker than someGate spring squeeks, less versatile than HMS styleHeavy and bulkyExpensive compared to alternatives, the least amount of gate clearance
Bottom Line An anti-crossloading locker with two gate openings that hinge on each other in a rather complicated designThe longtime standard as the best locker for all purposesOur Best Bang for the Buck winner due to its great price, but also its impressively lightweightA versatile and secure choice that is easy to handle and use, if a bit heavyThe lightest and easiest to use small locker
Rating Categories Mad Rock Gemini Petzl Attache CAMP USA Photon Lock RockLock Twistlock DMM Phantom
Overall Utility (25%)
5
10
7
7
6
Ease Of Unlocking And Locking (25%)
6
7
8
8
8
Compactness And Weight (20%)
5
7
9
3
10
Gate Security (20%)
7
7
7
9
6
Gate Clearance (10%)
3
10
5
9
3
Specs Mad Rock Gemini Petzl Attache CAMP USA Photon Lock RockLock Twistlock DMM Phantom
Weight 72 g 57 g 44 g 93 g 41 g
Gate Closed Strength (KN) 23 22 23 24 24
Sideways Strength (KN) 7 7 8 8 9
Gate Open Strength (KN) 7 6 9 8 9
Gate Clearance (cm) 1.6 cm 2.6 cm 1.8 cm 2.5 cm 1.6 cm
Visual Locking Indicator? Yes Yes Yes Autolocking No
Carabiner Shape Dual Opening Pear/HMS Offset-D Large Pear/HMS Offset-D
Lock Closure Type Screw Lock Screw-lock Screwgate Twistlock Screwgate
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