I would appreciate it if you read my profile. ❁*·⑅❁*·⑅❁*·⑅❁*·⑅❁*·⑅ ❁*·⑅❁*·⑅❁*·⑅❁ ⚫︎Neck size → Adjustable from 12cm to 24cm ⚫︎String width → Approximately 7mm / Yellow系 ⚫︎Bell → 10mm / Made in Japan Horai Bell ※ Approximate sizes. ❁*·⑅❁*·⑅❁*·⑅❁*·⑅❁*·⑅ ❁*·⑅❁*·⑅❁*·⑅❁ Handmade item. Made with cotton slub dobby fabric, which is sturdier than sheeting. The yarn core makes it soft and lightweight. I think it will reduce stress. ✔️ Slide the knots on both sides to widen it, then put it over the face, and adjust it to the appropriate size. You can wear it without untying the knots. ✔️ Consider the size of the face and the possibility of the collar getting caught, and choose the size accordingly for safety. ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ ❁ If you are unsure about choosing a size ❁ Measure the nude size while your pet is sitting. 【= Snug fit without extra space】 The appropriate size is that size plus approximately 3-5cm. The guideline is that 2-3 human fingers can fit in the gap. For kittens, approximately 2-3cm. It's best if 1-2 fingers can fit in. This is just a guideline, so please use it as a reference. ❁ To keep it clean ❁ Wipe it gently with a pet shampoo towel, etc., to keep it clean. ❁ The photo shows the smallest size ʕ•ᴥ•ʔ