The chalk wheels “Mouse” and “Stick” and the parallel tracing wheel “Multi” from the prym.ergonomics series can be refilled with this chalk cartridge in a snap. With the cartridge, not only the dressmaker's chalk powder is replenished in white or yellow, but also the entire top including the chalk wheel and cap are replaced. In this way, the three ergonomic Prym marker aids are always fully functional and ready for use when they are needed at the workplace while sewing or dressmaking.
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