Thank you for looking. These are octopus lures with hook size #10 and weights. Once you have won the auction, please choose 20 colors of your choice. The squares in the photo are 1 cm x 1 cm. Thank you for your consideration. I have other items listed, so please take a look if you'd like. Size: Hook size #10, barbless, weighted (weighted with 8 wraps of 0.025-inch red wire) Colors: The fly colors, from top left, are Black, White, Brown, Natural, Olive, Emerald, Red, Orange, Salmon Roe, Fluorescent Pink, Pink, Yellow, Chartreuse, Gray, Purple, and Blue. If you have any other requests, please contact me via the question section. I will do my best to accommodate your needs.