50 Sheets Graphite Paper Round Tracing Paper Physics Experiment Equipment 50 Sheets Physical Experiment Equipment Round Carbon Transfer Paper Toner Paper Tray Ticker Timer Tape Dotting

★Tips: *Due to manual measurement, there may be some errors, please allow 1-3cm difference, thank you. *Because the spotlight and different people have different understandings of color, there may be a certain color, but within a reasonable range, please choose carefully.★Tips: *Due to manual measurement, there may be some errors, please allow 1-3cm difference, thank you. *Because the spotlight and different people have different understandings of color, there may be a certain color, but within a reasonable range, please choose carefully.

• Made of paper material, durable, safe to use, suitable for use in physical experiments.
• Toner paper tray, an essential accessory for speeds experimentation, works better with the dotting timer.
• This toner paper is specially designed for electromagnetic dotting timer, very durable and not easy to.
• Exquisite details and good workmanship make it safer and more durable, and will provide you with good service.
• Suitable for being sent as a gift for friends or family who want to do experiment, they will love it.