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Vintage Staedtler-Mars 987 18-31 Architect Triangle Drafting Ruler 12"
Product Details
The Vintage Staedtler-Mars 987 18-31 Architect Triangle Drafting Ruler is a collectible engineering tool measuring 12 inches. Made by Staedtler-Mars, a reputable brand known for quality drafting tools, this ruler is a classic piece for any enthusiast or professional in the field of architecture and engineering. Imported from China, this triangle drafting ruler is a precise and versatile tool that has stood the test of time in the industry.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.







