The first concave-shaped polishing brush. Efficient in practice: The concave shape of the brush is efficient on all tooth surfaces, also on less accessible surfaces like interproximal spaces and occlusal fissures. Universal use: Always produces excellent polishing results for all restorations due to the concave shape of the brush. Excellent polish for an optimum aesthetic appearance: The polishing effect is created by polishing particles embedded in the bristles (silicon carbide), therefore no paste is necessary. High gloss for all situations: Efficient gloss polish for restorations made of composite, compomer, resin-modified glass ionomer or ceramics as well as for prophylactic treatment. Durable for multiple use: Autoclavable at 134 Degrees Celsius, at least 3 min. No effect on the polishing performance. 3 brushes"