Specifications:
Brand: Subject Error Set
Memory Method: Ebbinghaus Memory Method
Memory Retention Rates: 5min (100%), 30min (50%), 12h (50%), 1day (50%), 2day (70%), 4day (70%), 7day (70%), 15day (70%)
Study Efficiency Improvement: 90%
Design: Double-sided thick notebook
Paper Quality: Eye-friendly, waterproof, anti-fouling, wear-resistant, and tear-resistant
Binding: Stitched binding to prevent pages from falling out
Size: 195mm x 260mm
Color Coding: 9 colors for 9 subjects (Chinese, Mathematics, English, Geography, History, Politics, Physics, Chemistry, Biology)
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