Black Line Tracking Robot for Competitions and Education for Sale

Black line robot for competitions and education (Line following robot), this is my second account I'm offering for sale, originally my friend's account which I'm posting here (programmable, but requires modifications regarding wires and wheel) Specifications: Arduino Uno R3 (SMD Clone) x 1 Ardumoto Dual Motor Driver Shield x1 QTR8-RC Line Sensor x 1 12V DC Gear Motors x2 High Grip Silicone SLT20 Wheels x2 Lexan Laser Cut Line Follower Robot Base x1 Plastic Motor Brackets x 2 Female-Male Cable x 10 M3 & M2 Screws & Nuts. Brass Standoffs x 4 JST Cable for Battery Connection Mini Switch x 1