[DETAIL] Product name: US Standard Foot Measuring Device Material: ABS Product size: 33.8 * 10 * 3.6cm Measurement range of net foot length: baby, children, men, women (foot length 9-31cm) Features: Matte surface, clear printing; Suitable for household use. Foot length measurement: Foot length refers to the horizontal straight-line distance between the vertex of the longest toe and the protrusion point of the heel. Place your foot flat on the foot measuring device, and in a relaxed state, press your heel against the back panel and slide the cursor out to the longest toe. At this point, the number below the panel is the actual foot length. [ATTRIBUTES] - Electric: No - High-concerned chemical: None - Power Source: None Electric - Electric: No - High-concerned chemical: None - Power Source: None Electric - Material: ABS - Model Number: / - Type: Hand Foot File - Power Source: None Electric - Item Type: Foot Care Tool - Number of Pieces: One Unit - Origin: Mainland China