Patchwork rulers, templates (3mm) and quilting rulers (5mm) are made of high quality cast acrylic glass PERSPEX ISO 9001. Perspex® is characterized by excellent light transmission (92%), which is comparable to glass, impact resistance (5x more durable than glass of the same thickness) and light weight (1.19 g / cm³). The surface hardness is the highest of all common plastics. Cast Perspex® acrylate has low surface tension and is resistant to UV radiation. Rulers and templates have an allowance for a 1/4 "inch patchwork foot. Čeština / Deutsche
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