1.Use elastic plastic covering the top of handle to protect wire avoid
breaking.
2.Thermal Plastic Elastomer covering design adds additional value of the product.
3.Bush head adjusts up to 90 degree for easy access.
4.SM-457 could be I type or L type interdental brush due to flexible material.
5.Uses Germany high tensile & anti-allergenic stainless wire and USA Dupont Tynex ® nylon filament.