More sayings -- The Green "Don't Fuck it Up" option - a good mantra for any occasion, but particularly helpful before you step on the court or in the middle of a heated match. The Orange "Move your Fucking Feet" option - a great reminder for players of all levels to not have lazy feet! More sayings -- The Yellow "Get to the Fucking Net!" option - Highly requested and very often yelled at by my coach (and my partner). The Blue "Patience...let THEM fuck it up" option - are you a regular 'slam the overhead right into the net' player? Join the club, my friend! A great reminder to take a breath and let them make the mistakes! Funny Tennis Vibration Dampener -- Do you and your tennis friends sometimes need a spicy or aggressive reminder to keep you focused and moving? These are the perfect little reminder to keep you on your game! Tennis Gifts -- This tennis dampener fits most racquets. Regardless of the string pattern on your racquet, the size of this dampener and the depth of the cut outs will allow it to fit securely on your strings. PERFECT for kids and all players. This tennis dampener is made of Silicone. The tennis dampener absorbs vibration. creates a lightweight and durable solution. This package includes 4 tennis dampeners. Keep Calm and Play On!