This Auction Is for a Huge 6 inch X 6 inch (15cm x 15cm) Square Of Our Amazing Diffraction Grating Film!! Turn Sunlight Into A Rainbow! Or Split Laser Light Into Multiple Dots!! Q: How Does It Work? A: As Sunlight Hits The Film It Is Split Using Over 25,400 Microscopic Lines Per Inch Which Then Pass Through Projecting A Full Rainbow Of Colours Onto Walls And Surfaces. Alternatively Use A Laser Pen To Split One Dot Into Multiple!!!  Q: Can I Get A Bigger Sheet? A: Unfortunately We Only Have 6 Inch Wide Rolls Q: What Can It Be Used For?  A: It Can Be Used As A Sun Catcher, Laser Pen Light Splitter Or Even An Interesting Effect For Photography! Q: Is It Delicate? A: No, Its Very Tough, But As Thin And Flexible As Paper, It Can Be Cut Easily And Can Be Used For Many Educational And Scientific Experimants! Q: Can i Touch It? A: Its Best To Wear Gloves When Handling To Avoid Finger Prints, This Diffraction Grating Sheet Has 1000s Of Microscopic Lines On The Surface And The Oil In Your Skin Will Fill Those Lines Damaging It Q: Why Do Some Sheets Have Marks Or Crinkles? A: Its All To Do With How Close To The End Of The Roll The Sheet Is Cut From, A Small Minority May Have Some Impression Marks From The Roll Or Join Lines, But It Wont Effect How These Sheets Work. PLEASE CHECK OUT OUR OTHER LIGHT PRODUCING PRODUCTS! Postage Is 2nd Class To Any UK Address, International Postage Available Too, Multiple Buys Will Be Sent Tracked And Recorded. Any Questions Please Ask Any Time!