Effect of Cartoon Projection and Ball Squeezing on Pain During Venipuncture in Children

The goal of this clinical trial is to learn which distraction method works better to reduce needle pain in children aged 4-12 years during blood draws. The main questions it aims to answer are: * Does watching cartoon videos lower children's pain more than squeezing a stress ball? * Which method do parents prefer for their children? 120 children will be randomly assigned to watch cartoons or squeeze a ball while nurses draw blood. Pain will be measured using a 0-10 pain scale right after the needle. This study will help nurses choose the best way to make blood draws less painful for children.