Lion Dental Materials Co., Ltd. Mushibalus Ring Notebook 【Size】 Length x Width x Height: Approximately 15.5cm x 11cm x 1cm I've used the exact same notebook before, and it's easy to use with the light pink ruled lines (approx. 1cm). Brand new, unused. Will be shipped via Yu-packet Post Mini. *Can be combined with other items. I'll offer a discount, so please comment.