There are two main types of balls; inside with larger holes and outside with smaller holes. There are lots of choices when it comes to paddles as there are many makes and models. There is a standard head size and an elongated paddle. Paddles can be bought based on weight, grip sizes, ones that spin the ball and ones that absorb more shock to reduce tennis elbow. There are hundreds of manufacturers that offer many styles and colors. Prices can range from $50.00 - $300.00. Probably would be best to buy a less expensive paddle to start, then get a better one as your game progresses. Wearing protective eyewear has really become more popular as some people have been hit with a ball in the face. It is important to protect your eyes and protective eyewear specifically for sports is recommended. This type of eyewear is more impact-resistant. Shoes are also very important because most of your movement on the court is lateral. A running shoe is built for forward movement not lateral, so you want to get a court shoe or a pickleball shoe.