For sale is a Basic Reference Math Flipper. Brand new. Found in my grandmothers private collection. One owner. Vintage and brand new. Rare find. I do use recycled boxes and envelopes to mail.
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.
Ik heb het product nu een tijdje in gebruik en tot nu toe werkt het goed. Alles lijkt naar behoren te functioneren en ik heb geen klachten.