For OM mount. Not compatible with Four Thirds, Micro Four Thirds lenses, or AF lenses named "OLYMPUS-LENZ" for OM707/OM101. Weight: Approximately 13g Instant purchase welcome. Used item. Tested for mounting. Shipped via regular mail (no tracking). No delivery on weekends and holidays. Please note. Bubble wrap packaging. *If you prefer Mercari Mail Yu-Packet Post Mini (with tracking and holiday delivery, faster arrival), it's an additional 44 yen. I will change the price and make it exclusive, so please comment before purchasing.* Not available from 9 PM to 6:30 AM the next day. Combined shipping is possible, but only for items currently listed to prevent problems. Please use Mercari's bundling feature for combined shipping. You can get a discount for the extra shipping cost (requests for combined shipping via comments are not possible). You can set the discount amount as you like. I will bundle them with the maximum possible discount. If you cannot purchase at the discounted price, please do not purchase and leave it as is. If you purchase multiple items without combining them, I will either upgrade the shipping method or ship them separately without a discount. *Discount for purchasing multiple of the same item* Weight: Approximately 13g per piece 2 pieces: 140 yen off (shipped via regular mail) 3 pieces: 280 yen off (〃) 4 pieces: 380 yen off (shipped via Mercari Mail Yu-Packet Post Mini) 5 pieces: 520 yen off (〃) ★I cannot accommodate urgent shipping requests such as "Please ship today." ★In case of non-arrival or malfunction, please contact me before leaving a rating.