Specification Brand : HARFINGTON BulletPoint1 : Size - Diamond grade reflective survey Targets 20mmx20mm for total stations BulletPoint2 : Material - Using diamond-grade Acrylic materials, multi-angle reflection, and accurate measurement. Waterproof and wear-resistant, clear lines BulletPoint3 : Feature - Pressure-sensitive adhesive back, strong stickiness, can adhere to almost any surface, used instead of a prism. BulletPoint4 : Application - Widely used in construction surveying and monitoring, such as subway engineering, tunnel engineering, bridge engineering, building construction, ship survey, etc. BulletPoint5 : Survey Accuracy - Standard measurement mode: 2mm +2 ppm; Fast measurement mode: 5 mm +2 ppm. Color : Yellow CompatibleMaterial : Paper ItemName : HARFINGTON 20pcs Survey Reflector Sheets 20mm Self-Adhesive Reflective Tape Survey Target Mark for Total Stations, Yellow ItemPackageDimensions_Height : 9.9 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 6.1 centimeters ItemTypeKeyword : safety-tape Manufacturer : HARFINGTON Material : Acrylic PartNumber : hta230323hh0086 ProductDescription : Diamond grade reflective tape 20mmx20mm paste prism paper reflector for total stations Using diamond-grade materials, multi-angle reflection, and accurate measurement. Waterproof and wear-resistant, clear lines Pressure-sensitive adhesive back, strong stickiness, can adhere to almost any surface, used instead of a prism. Widely used in construction surveying and monitoring, such as subway engineering, tunnel engineering, bridge engineering, building construction, ship survey, etc. Survey Accuracy: Standard measurement mode: 2mm +2 ppm; Fast measurement mode: 5 mm +2 ppm. Note: According to different instruments and different weather, and the size of the reflector, the measurement distance will be different.