[**brk-client**](../README.md) *** [brk-client](../globals.md) / MempoolBlock # Interface: MempoolBlock Defined in: [Developer/brk/modules/brk-client/index.js:349](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L349) ## Properties ### blockSize > **blockSize**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:350](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L350) Total block size in weight units *** ### blockVSize > **blockVSize**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:351](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L351) Total block virtual size in vbytes *** ### feeRange > **feeRange**: `number`[] Defined in: [Developer/brk/modules/brk-client/index.js:355](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L355) Fee rate range: [min, 10%, 25%, 50%, 75%, 90%, max] *** ### medianFee > **medianFee**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:354](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L354) Median fee rate in sat/vB *** ### nTx > **nTx**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:352](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L352) Number of transactions in the projected block *** ### totalFees > **totalFees**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:353](https://github.com/bitcoinresearchkit/brk/blob/1e76e137abea038ab55fde16571abe1d31a780c4/modules/brk-client/index.js#L353) Total fees in satoshis