Made of clear?? springy plastic</br>Keeps your music in place</br>Sold as a 2-pack</br>Dimensions: 8.5"by .5"</br>Made in the USA</br></br>Product Description</br></br>Keep your music on the music stand even in an outside wind. You'll want 2 of these?? since you'll use them in pairs?? one for each side of the music stand. They are 8.5"ong and a half inch wide?? and ... you can read your music right through them because they are absolutely clear! Made of a unique?? springy clear type plastic?? these are guaranteed not to break under normal use. Just slip these over your sheet music and the stand together?? (clipping the music to the stand) and it will hold the music still?? even in a wind. Made in the USA.</br><br/>http://www.amazon.com/gp/product/B00XUYCXG22wi