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counting back
and hurdle technique
Set includes 10 activities and supplies to make a mesh stress ball
1 x Set of Paintbrushes (assorted sizes) - PRODUCT MAY DIFFER FROM IMAGE SHOWN
with no movable or detachable parts
Philip Harris Ticker Tape Timer (NBO) counting backFor the measurement of velocity and acceleration, using timing marks made on a moving paper tape by a vibrating striker. Designed to operate on a 12V a. c. supply and uses the mains frequency as its timing standard. The unit is housed in a moulded case L115 x W60 x H70mm, including mounting flanges. The top of the case carries a tape guide with carbon paper disc support and adjustable anvil for the striker point. All moving parts are fully enclosed