the mold head so that when the head is lowered the inserts will be within the molds for each block when concrete is introduced into the molds it will thereby flow around and over the inserts to form a soil erosion prevention block with an integral insert referring now to the drawings an apparatus in accordance with the invention for accurately placing a plurality of soil erosion prevention block inserts under the mold head of a molding machine is indicated by reference numeral 10 the apparatus comprises generally a main frame 11 and an insert holder frame 12 the main frame is adapted to carry the insert holder frame 12 as will be described in more detail below the main frame includes wheel brackets 14 attached at approximately each corner thereof by welding or other suitable means wheels 13 are mounted with the frame by means of a plurality of bearing shaft bolts as are well known threadably engaging with the wheel brackets 14 the apparatus is preferably constructed of aluminum which is easily fabricated and provides a sturdy and light weight structure as best seen in fig5 the front end of the frame is preferably raised to clear the inserts after they are placed on the casting bed as well be.