... come in 4 different strengths: +1, +2, +4, +10 3.Enough Stock Specification:100% Brand new and high qualityThis macro filter set ... can use the filters individually or combined (+1 plus +4 will become +5)Dimensions:External diameter:60 mmInternal diameter:58mmMaterial: ... (For all Sony, Canon, Nikon, Olympus, Pentax, Panasonic, Sigma, Tamron, Minolta, and other manual lens etc.)Included:1 x 58mm +1 ...