Learn Application Instructions: Open the Bottle:Carefully unscrew and remove the bottle’s current cap and brush. Clean the Old Brush (if needed):Use a paper towel to wipe off any remaining glue or residue from the old brush and cap. Separate the Brush from the Cap:Hold the cap firmly in one hand, then grasp the brush with a paper towel using your other hand.Gently pull the brush away from the cap until they come apart. Insert the Replacement Brush:Take the new glue brush and place it inside the bottle. Attach the New Cap:Put the new cap on the bottle and screw it on tightly. As you do this, the replacement brush will attach itself to the cap securely. Check the Brush Fit:Once the cap is tightly in place, open the bottle again to ensure the new brush is properly attached and ready for use.