The proven synthetic brush generation for kindergarden and school whose main features are: the stable - almost indestructible brush-head with a really fine tip or painting edge - NO ANNOYING HAIR LOSS ! Rust-resisting ferrules - we use stainless, polished aluminium - except for series 5076, which has a rust-proof steel ferrule. Handles that are lacquered on water-basis showing on their thickest part rarely recognisable flattenings and are thus not "rolling away" (an important step to keep tables, chairs, floors and clothes clean) No longer loose brush-heads after inadequate use