Specification Brand : Plastic-Craft BulletPoint1 : Weather and scratch resistant BulletPoint2 : Attractive high-gloss finish BulletPoint3 : Water-clear transparent BulletPoint4 : Good optical clarity BulletPoint5 : Solid NOT Hollow Color : Clear Department : unisex ExternallyAssignedProductIdentifier1 : 799599265562 ExternallyAssignedProductIdentifier2 : 0799599265562 ItemForm : Rod ItemName : Solid Acrylic/Plexiglass Half Sphere (Cabochon) - Transparent/Clear - 1" (Pack of 20) ItemPackageDimensions_Height : 1.5 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 20 ItemShape : Half Sphere ItemTypeKeyword : plastic-spheres Manufacturer : Plastic-Craft Material : Acrylic ModelNumber : AC1508_Q20 NumberOfItems : 20 PartNumber : AC1508_Q20 ProductDescription : Acrylic, also known as Plexiglass, Lucite, or Perspex, Acrylite, and Optix is a versatile plastic material with a variety of purposes and benefits, available in a spectrum of colors and opacities. Acrylic plastic was first produced in 1928 and brought to the market by Rohm and Haas Company around 1933. It was initially used during World War II for products such as airplane windows, canopies, and turrets. Acrylic is an extremely durable material that is 10x times stronger than glass. Because of its resistance to high pressure and impact. As well as its incredible resistance to weather and temperature, acrylic is a great alternative to glass. These solid acrylic half-spheres (also known as cabochon) are light-weight, tough, and scratch-resistant. Use them to create imaginative displays, intricate centerpieces, or for home decoration! They are available in sizes ranging from 3/8" to 3". Acrylic is simple to clean and polish using a clean cloth and cleaning compounds. It is possible to remove light scratches from acrylic with special abrasive compounds. Here at Plastic-Craft we sell a number of cleaners and polishers such as the Novus polishing kit, that can keep your acrylic looking like new for years to come. Light transmission is the technical term for transparency to light. Clear Acrylic has a 92 percent light transmittance rate — one of the highest light transmission rates possible. Most acrylic plastics will allow light of wavelength greater than 375 nm to pass through the material, but they will not allow UV-C wavelengths (100–290 nm) to pass through. Even very thin acrylic sheets of less than 5 millimeters (mm) do not let UV-C light penetrate. ProductSiteLaunchDate : 2022-11-12T16:45:25.254Z Size : 1" SkipOffer : 1 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 10 UnspscCode : 30000000