We are a professiona compass manufacturer. We supply good quality compass. We have thumb orienteering compass with strong Magnet. MA-40-F is for professional training usage, Specialty below: Fast needle Can be use for left hand and right hand. (LH or RH available) Fits on thumb with adjustable elastic Welcome to visit our website or contact us for detail. OEM and ODM welcome. Thanks. The pictures on our website are for reference only. We can show you detail photos if you are interested in the item. Pls feel free to contact us if you hv any question about our items. We keep developing new compass items, and your design is welcome! Welcome to contact us for new compass's photos.