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1. colour of product may differ slightly, since each computer monitor displays color slightly differently. 2. please allow 1-3cm differs due to manual measurement. thank you for your understanding. 3. 1 inch = 2.54 cm, 1 cm = 0.39 inch 4.dear buyers, we appreciate your business, if you are satisfied with our service,please leave us a postivefeedback and rate the details of the transaction with a "perfect 5 stars".if you have any question, please contact us firstly before you leave feedback and deatailed seller ratings,we can solve the problem peacefully.