Review on SINOCMP Rubber O-Ring Kit 421Ts: 656-Piece Set Of 42 Different Sizes For E320B, E320, E312, E300 Excavator Parts - Includes 3-Month Warranty For Superior Performance by Antonio Santiago

This 656-piece set is a must-have for anyone who owns an E320B, E320, E312, or E300 excavator. The wide range of 42 different sizes ensures that you have the perfect fit for any replacement part required. The durable rubber material guarantees longevity, and the easy-to-store case ensures that you can find and access the right size quickly. The 3-month warranty gives you peace of mind that these o-rings will perform to the highest standard. The only downside is that the instructions are not included, which may make installation a little tricky for some. Overall, this kit is excellent and does the job incredibly well. Highly recommended!