The package contains only 10 spirit levels, size: yellow: 75 x 12.5 , red 75X12mm HIGH QUALITY MATERIALS: Mini level pendant lights are made of special acrylic and ABS materials, which are very strong, wear-resistant, not easy to deform and durable, which means they will not be subject to wear and can be used for a long time. The molded products of the small spirit level have crystal appearance, fine workmanship and high visibility. Product Features: Our mini spirit level is easy to use for quick measurements. Not only the horizontal direction but also the vertical direction can be measured. The liquid inside the spirit level is a mixture of low viscosity colored oils, so the air bubbles have the best freedom of movement, and it is easier and more accurate to handle different angles and different measurement requirements. Unique Design: This string level comes with a pre-shaped hook, you can easily hook it to the construction crew line to confirm the accuracy of the level, it can slide on line. Convenient, lightweight and compact, it does not require batteries, so you can store and use it anytime, anywhere. Easy to use: simple to use, just place the bubble level on the ground plane/level to be tested, if the bubble is in the center, it proves that the plane is level. The further away from the center, the greater the error. Lightweight construction prevents rope sag from affecting measurement accuracy. Uses: The spirit level can be widely used in the construction industry, hanging pictures, measuring of buildings, landscaping, home decoration, technical survey and acceptance. Suitable for a variety of jobs requiring horizontal precision, it can adjust various frames, fences, furniture, etc.