Durable, low-friction single pulley with rigid aluminum sheaves and also a convenient bottom tightening table clamp. The Deep V-groove and heavy aluminum frame will stand up well to student use. Mounts using a sturdy "T"-Screw which will tighten securley to mounting surface.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.
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