Feature: Effective performance: This solid washing machine cleaner has triple decontamination and active oxygen decontamination features that have strong dirt removing performance can effectively clean the harmful and stagnant dirt even if it is invisible. Various applications: This effervescent tablet is a suitable top load washing machine and conventional washers, keep your machine in a safe, neat, and organized working environment. How to use: Make the washing machine in washing mode and put 2 pieces of effervescent tablet into the drum. Soak for about 40 minutes after washing for 5 minutes. Discharge the sewage to complete the cleaning. Specification: Size: approx. 2.6 x 2.6 x 1.2 cm/ 1 x 1 x 0.47 inch Color: white with blue Package content: 30 x Solid washing machine cleaners Note: Small-item, please keep children away from this product to avoid accidental ingestion. Manual measurement, please allow slight errors in size. The colors may exist slight difference due to different screens.