Finished lenses:\n1) imported israel moulds\n2) normal corridor (17mm): \na) good for medium and large size frames \nb) popular in european countries\n3) short corridor (14mm): \na) good for small and medium size frames\nb) popular in asia and south america\n4) power range: \na) plano ~ +3.00 / add +1.00 ~ +3.00\nb) -0.25 ~ -2.00 / add +1.00 ~ +3.00\nsemi-finished lenses:\n1) diameter: 75mm, 70mm\n2) normal corridor (17mm), short corridor (14mm)\n3) base: 100, 300, 500, 700\n4) add: +1.00 ~ +3.00\nskype: clearoptical