Complete fresh factory set consisting of 4 x high quality straps manufactured in Europe for cassette recorders: PIONEER CT-F600 EXTRA STRONG WITH HIGH PERCENTUAL RUBBER PURE LONG LASTING Even more resistant than the original ones, resistant to different acids, high temperatures, UV and high mechanical resistance. The straps must be able to absorb mechanical vibrations and those of the engine that is only possible with the best straps with a high content of natural rubber and other matching materials that guarantee good wear resistance and the right traction but without deformation. After many experiments and tests, we have reached this winning mix. The lengths of our belts are always exactly tailored to the model described, they are not adapted and stretched to allow them to enter by "strength" damaging the mechanics over time and removing the strap, both the duration and the ability to absorb vibrations well. Because unlike many we have many sizes, not a few "standard". You do not have to worry about the mounting direction as you smooth it on all sides.