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the Oxygen 61 (MKV) keys play the exact notes within a chosen scale
allowing for bright
Easy to removeThese pens can be easily wiped clean with a whiteboard eraser
Available in 4 colors : Blue
Spring Extension, Steel, 15mm dia, 55mm length (Pack of 200) EE5250 the Oxygen 61 (MKV) keysCoiled Steel Spring with double loop ends Overall Length End to end 50mm (1. 96") , Spring collapsed length with out hoops 24mm (0. 94") . Spring Outside Diameter 15mm (0. 59") Spring stretches to around 200 230mm to (Approx. 8 9 inches) and returning to normal length with no deformity Perfect tool for studying motion of mass on a spring, Hooke's Law, potential energy, etc. It provides a visually and kinesthetically effective method for studying the
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