A Look At Chalkboard Erasers
Under normal circumstances the cost of the erasers would be around $2 to $5. This will however depend on the quality and the quantity that is desired. These days there is even the development of newer versions and models that can be attached to the hand. This way it would make it very easy for one to write and then erase at the same time. In recent times also, since there is the proliferation of whiteboards, eraser is now made to have the ability to clean marker writings on these boards.
The size of the normal chalkboard erasers would have a dimension of about 1.5 inches by 4 inches. Normally this is the best for the regular chalkboards. You can also get smaller ones which may be very much suitable for loose boards or personal chalkboards.
Indeed the normal process of cleaning with these erasers would involve the repeated pounding of the eraser against one metal filter. Gone are the days when children were sent outside to pound them against the school premise. This only led to the floating the dust particles into the air. These days there is a securer way of using these erasers by just dipping the felt portion of it into some lukewarm water. In fact before one can use it again, there is the need to dry it prior to re-using them.
Normally the chalkboard erasers are made of felt strips which are bound together with the use of cardboard or sticky paper and this can also be a handle as one uses it. In order to prevent the accumulation of too much dust particles, there is the need to ensure a good maintenance. This can also help those who have breathing problems or allergies. If they get too dirty it would be difficult to use them.