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Black Diamond Quicksilver2 Screwgate Carabiner
Black Diamond's Quicksilver2 Screwgate is updated with a locking gate and screwgate sleeve, and now shares the same body as the Quicksilver2, with its wide rope-bearing width of 9.5mm and an angled nose for easy clipping. The relatively light weight of the Quicksilver2 Screwgate (56 g) makes it great for big wall and alpine anchors, while a deep basket allows climbers to pile in the runners and slings. Black Diamond created this biner for climbers who place a premium on weight, yet demand workhorse durability and high strength out of their lockers. –Vendor
$7.45 
Excellent biner!
Small, compact locking biner that is strong and durable, excellent for use with a daisy chain.
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Training Tips
For runners looking to get the maximum benefit from hill training, as you sprint to the top of the hill have your arms pumping faster and faster. Once you get to the top, continue on increasing your speed as much as possible.
After each interval, take your pulse rate by counting the number of beats at your wrist or neck for 15 seconds. Multiply that result by four to get your beats per minute. Your next interval should start before your heart rate is less than 60% of your maximum.
The four components of good fitness include flexibility, muscular endurance, muscular strength, and cardiorespiratory endurance. For optimum health, include at least two of these groups in three workouts per week.
Your fitness level will improve by overloading, working your body hard enough to stimulate the body, progression, increasing the frequency, intensity, and duration of exercise over time, and regularity, working out frequently, at least three times a week.
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