The precise bubble level with straight ruler, spirit level and protractor angle measurement! A bubble level is usually used in construction, carpentry to determine if objects on which you're working on are level. 📐🎊 🎉 Key features: - Accurate & fast measurement - Show angle in degree, inclination in percent - Orientation locking - Easy to use Most precise leveling tool for your Android device, Hang paintings like a pro. It’s a must have device for any home or apartment.⚖️💎🎁