skru-it.com
Field Systems Research HomeAir-Lock Trapped Air Indicators. Revolutionary, patent-pending attachment systems make our. Indicators and weights stand apart from the competition. Fly Fishing with a Twist". Started as an endeavor to come up with a better way to attach the amazingly popular trapped air indicators so heavily used all around the world today. How many times have you been frustrated with slippage or line damage? Well, same with us. It's so easy. AND IT WORKS! 2 Place leader in slit. 3 Replace nut and tighten.Duh.
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