This tattoo kit contains: - 2 Top Tattoo Machines Guns:WS-M027 &WS-M028(shown as photo) - One LCD Tattoo Power supply, including clipcords & Foot pedal Fitted Wire Plug - Two Tattoo Grips with Backstem (the size of the grips is 23mm*50mm ) - 50 pcs first class tattoo needles, sterilized. - 4 pcs tattoo stainless steel tips for tattoo needles - 1 set of Great Tattoo Inks Pigment , 8 Colors 1/2 oz Different Colors (15ml/color) for the following color: COUNTRY BLUE, TRUE GREEN, DEEP TURQUOISE, WHITE, LAVENDER, TRIBAL BLACK, GOLDEN YELLOW, CRIMSON RED - 50 pcs tattoo ink cups, Half White & Half Yellow - 50 Rubber Bands & 50 Grommets for tattoo machine - One set tattoo mahcine adjust tools - 1 pcs practice tattoo skin - 10g tattoo machine gun colorful rubber bands O rings Commonly used tattoo needle sizes: Strictly speaking, there is no such commonly used sizes which is suitable for all tattooists. The selection of tattoo needles varies according to different artists' habits ,the types of tattoo designs and tattoo machines.But if you do not know which sizes to choose, the following information could be a guide for you. 1. RL1, 3, 5 are for of small tattoo linings. 2. RL7,9, 14, 21, for whole back tattoo, and thick lines. The RL7 and RL 9 are perfect in shading tribal tattoo designs. 3. FS5, 7, 9, 11, for making whip stroke, and shading. 4. M5,7,9 for coloring small and medium tattoos. 5 M11,13,15, 17 for large tattoo design coloring. 6. The MR7,9,11 are for light shading, super for general portraits.