I now sell these with an anti-static laminate bonded to them.  I prefer those to regular felt as there is less graphite shed on some tapes.
 
An economical, easy to cut, peel and stick replacement felt for those 8 track tapes that used the felt on a copper pressure spring pad. These are thinner than the original felt (these are around 1/16" or less thick). Which makes them easier to cut. Though if you aren't going to open up the cart to replace the felt, I recommend my pre-cut anti-static, or regular felt tabs.  They are a little thicker and easier to install  if you aren't opening up the cart.  
 
Simply cut the length you need, peel and stick! (You WILL need to remove old adhesive from the copper piece or these won't stick properly). Comes with five 6 inch long strips Enough to do roughly 25 to 50 tapes, depending on the sizes you are dealing with (There were 3 different sizes used on the carts, Small, Medium and Large).
 
Copper strips are for demonstrative purposes only and are not included.
 
Shipping Details:
 
USA Customers ONLY, Shipping is a flat fee of $4.51
Orders $40 and over get FREE shipping via USPS Ground Advantage.
 
Canadian Customers, Shipping is a flat rate of 10.99 for up to $100 worth of merchandise
 
International Customers,
Shipping to most countries is $13.99 for the first $100 worth of merchandise.  This is through Asendia/USPS. 
 
Also, depending on your country, you may be charged an excise tax, VAT, etc on your end.  I do not collect any of these taxes or fees.