Tuoren 4Pcs Black Skull Knob Replacement Parts For Electric Guitar Tone And Product Details Features: Electric Guitar Metal Skull Volume Tone Knobs Use these skull knobs to dress up your electric guitar or replace the dingy or old knobs. These 4pcs of durable metal knobs are must-have replacementparts for guitar lovers. Skulls stick up about 1.9cm tall and about 2.3cm from head to chin. Corresponding to the potentiometer mounting inner diameter of 6mm. The hex wrench with this knob has a diameter of 2.0mm. Package Includes: 4 x Volume Knobs 4 x Wrench Volume Control Knobs has a skull shape concave style which is fashionable and creative to use. Use these skull knobs to dress up your electric guitar or replace the dingy or old knobs. Suitable for most rice open-shaft electric guitars, basses, stereos, etc. with a diameter of 5.8 mm. Total Size: 25 x 19 mm / 1" x 0.71"; inner Hole diameter: about 6mm / 0.23". Package Contents: 4x Control Knobs, 4 x Wrench. Color: Black / Gold / Silver. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.