... daysTerms of paymentT/T*Tips•Mainingredients of silkworm's sand :Protein 11.55%,Fattiness 2.2%, ... Phosphorus,Nitrogen,Potassium and so on.•Function:Effective for eyedisease,palpitation,insomnia,neurasthenia,cephalagra,hypertension,arthritis.• ... research ,design,produce and sales of bedding for the high-end marketing.We use local high ... over one hundred of productions. 100 % cotton Silk Sand Pillow